Adjacent channel co-existence study between 5G NR and Wi-Fi in the 6 GHz band for indoor scenario

Base stations (BS) radiation is the main source of electromagnetic background generated by mobile (cellular) communications. The known technique for estimating an average intensity of background generated by BS radiation takes into account the directivity of BS antennas in a simplified form, assuming that the width of the main lobe of the radiation pattern is equal to the width of BS servicing sector and not taking into account the radiation directivity in vertical plane. Noted simplifications determine too pessimistic nature of these estimations. The paper contains results of the refined analysis of this problem using a two-level models of antenna radiation patterns, which give the actual values of the width of antennas main lobe in horizontal and vertical planes, the relative levels of side lobes and the ratio of radiation power of the main and side lobes. The analysis was performed both for stationary sector antennas of cellular communication systems and for adaptive phased antenna arrays of 4G/5G systems capable of providing service using narrow beams. Obtained results reduce by 5-15 dB the degree of pessimism provided by known techniques in the estimation of the average levels of electromagnetic background created by BS radiations near the Earth's surface

Особенности преподавания судебной медицины иностранным студентам.

Одним із головних елементів, які необхідні під час викладання судової медицини іноземним студентам це формування експертного компоненту лікарського мислення. Одним из главных элементов, которые необходимы во время преподавания судебной медицины иностранным студентам это формирование экспертного компонента врачебного мышления

The astrometric Gaia-FUN-SSO observation campaign of 99 942 Apophis

Astrometric observations performed by the Gaia Follow-Up Network for Solar System Objects (Gaia-FUN-SSO) play a key role in ensuring that moving objects first detected by ESA's Gaia mission remain recoverable after their discovery. An observation campaign on the potentially hazardous asteroid (99 942) Apophis was conducted during the asteroid's latest period of visibility, from 12/21/2012 to 5/2/2013, to test the coordination and evaluate the overall performance of the Gaia-FUN-SSO . The 2732 high quality astrometric observations acquired during the Gaia-FUN-SSO campaign were reduced with the Platform for Reduction of Astronomical Images Automatically (PRAIA), using the USNO CCD Astrograph Catalogue 4 (UCAC4) as a reference. The astrometric reduction process and the precision of the newly obtained measurements are discussed. We compare the residuals of astrometric observations that we obtained using this reduction process to data sets that were individually reduced by observers and accepted by the Minor Planet Center. We obtained 2103 previously unpublished astrometric positions and provide these to the scientific community. Using these data we show that our reduction of this astrometric campaign with a reliable stellar catalog substantially improves the quality of the astrometric results. We present evidence that the new data will help to reduce the orbit uncertainty of Apophis during its close approach in 2029. We show that uncertainties due to geolocations of observing stations, as well as rounding of astrometric data can introduce an unnecessary degradation in the quality of the resulting astrometric positions. Finally, we discuss the impact of our campaign reduction on the recovery process of newly discovered asteroids.Comment: Accepted for publication in A&

Грипп-2016: клинико-эпидемиологические особенности и современные возможности эффективной терапии (по данным ГБУЗ города Москвы «Инфекционная клиническая больница № 1 Департамента здравоохранения города Москвы»)

The aim of this study was to monitor in-hospital influenza virus infection during 2015 – 2016 epidemic flu season. Methods. Influenza virus was searched in patients hospitalized to a clinical infectious diseases hospital with acute respiratory viral infection during 2015 – 2016 influenza seasonal growth period using real-time RT-PCR method. Influenza virus was isolated from nasal swabs and autopsy material using canine kidney cell line. Other laboratory methods used included complete blood count, blood chemistry, blood gas analysis, urinalysis, and chest X-ray examination. Results. We examined 1,491 patients (375 adults, 546 children, 570 pregnant women with early gestational age). The proportion of hospitalized patients with confirmed A / H1N1pdm09 influenza in January – February, 2016, was 91.3%. A / H3N2 influenza virus was diagnosed in 5.7%, influenza B virus was isolated in 1.2% of patients. Totally, influenza virus was detected in 35.2% of samples, of which 30.1% of samples were obtained from adults, 33.7% of samples were obtained from children, and 39.8% of samples were obtained from pregnant women. The prevalent patient’s age was 15 to 60 years (76.1%) in adults and 3 to 6 years in children. Moderate course of influenza with a high rate of hospital admission was seen more often and was similar to that of 2009 – 2010 epidemic season. Proportion of patients with flu complicated by pneumonia was higher than that in 2014 – 2015 epidemic season. Bilateral lung injury was diagnosed in 48.4% of patients. High mortality in ICU (46.4%) was due to delayed start of antiviral treatment and late admission to a hospital. Conclusion. In 2015 – 2016 epidemic flu season, higher morbidity, complications and poor outcomes were related to predominant infection of A – H1N1pdm09 influenza virus. Risk factors of complications and death were delayed care seeking, lack of modern antiviral medications and comorbidity.Актуальность. В период подъема заболеваемости в сезоне 2015–2016 гг. в рамках эпидемиологического надзора за циркуляцией вирусов гриппа в Российской Федерации Центром экологии и эпидемиологии гриппа (ЦЭЭГ) Института вирусологии им. Д.И.Ивановского ФГБУ «Федеральный научно-исследовательский центр эпидемиологии и микробиологии имени почетного академика Н.Ф.Гамалеи» Минздрава России (Москва) на базе ГБУЗ города Москвы «Инфекционная клиническая больница № 1 Департамента здравоохранения города Москвы» (ГБУЗ г. Москвы «ИКБ № 1 ДЗМ») осуществлялся госпитальный мониторинг в условиях специализированного стационара, целью которого являлось определение количественного и качественного распределения штаммов вирусов гриппа А и В среди госпитализированных пациентов, в т. ч. с тяжелой формой заболевания, а также анализ частоты осложнений и эффективности противовирусной терапии. Материалы и методы. В период подъема заболеваемости гриппом в ГБУЗ г. Москвы «ИКБ № 1 ДЗМ» госпитализированы пациенты с клиническим диагнозом острая респираторная вирусная инфекция. Детекция вирусов гриппа проводилась методом полимеразной цепной реакции с обратной транскрипцией в режиме реального времени. Вирусы гриппа были изолированы из назальных смывов и секционного материала на перевиваемой клеточной линии почки собаки (MDCK). Лабораторная диагностика включала клинический и биохимический анализ крови, анализ газового состава крови, анализ мочи, рентгенологическое исследование органов грудной клетки. Результаты. В январе-феврале 2016 г. доля больных, госпитализированных в ГБУЗ г. Москвы «ИКБ № 1 ДЗМ» с лабораторно подтвержденным гриппом A / H1N1pdm09, составила 91,3 %, A / H3N2 – 5,7 %, В – 1,2 %. Обследованы пациенты (n = 1 491) – взрослые (n = 375), дети (n = 546) и беременные (n = 570) на разных сроках. Доля положительных на грипп проб в целом составила 35,2 %. Среди взрослых положительными на грипп были 30,1 % проб, среди детей – 33,7 %, среди беременных – 39,8 %. В возрастной структуре преобладали (76,1 %) пациенты в возрасте от 15 до 50 лет. В детской популяции наиболее вовлеченными в эпидемию оказались дети в возрасте 3–6 лет. Преобладали среднетяжелые формы гриппа с высокой частотой госпитализаций, сравнимой с сезоном 2009–2010 гг. Доля пациентов с гриппом, осложненным пневмонией, увеличилась в сравнении с эпидемическим сезоном 2014–2015 гг. Двустороннее поражение легких зарегистрировано у 48,4 % больных. Высокий уровень летальности (46,4 %) в отделении реанимации и интенсивной терапии связан с запоздалым началом противовирусной терапии и поздней госпитализацией. Заключение. Высокая заболеваемость, увеличение числа осложнений и неблагоприятных исходов определена доминированием вируса гриппа A / H1N1pdm09. Факторами, увеличивающими риск развития осложнений и летальных исходов, являются позднее обращение за медицинской помощью, отсутствие своевременной противовирусной терапии, сопутствующие заболевания

GRB 051008: A long, spectrally hard dust-obscured GRB in a lyman-break galaxy at z ≈ 2.8*

We present observations of the dark gamma-ray burst GRB 051008 provided by Swift/BAT, Swift/XRT, Konus-WIND, INTEGRAL/SPI-ACS in the high-energy domain and the Shajn, Swift/UVOT, Tautenburg, NOT, Gemini and Keck I telescopes in the optical and near-infrared bands. The burst was detected only in gamma- and X-rays and neither a prompt optical nor a radio afterglow was detected down to deep limits. We identified the host galaxy of the burst, which is a typical Lyman-break galaxy (LBG) with R-magnitude of 24.06 ± 0.10 mag. A redshift of the galaxy of z = 2.77+0.15-0.20 is measured photometrically due to the presence of a clear, strong Lyman-break feature. The host galaxy is a small starburst galaxy with moderate intrinsic extinction (AV = 0.3) and has a star formation rate of ~60M( yr-1 typical for LBGs. It is one of the few cases where a GRB host has been found to be a classical LBG. Using the redshift we estimate the isotropic-equivalent radiated energy of the burst to be Eiso = (1.15 ± 0.20) × 1054 erg.We also provide evidence in favour of the hypothesis that the darkness ofGRB051008 is due to local absorption resulting from a dense circumburst medium © 2014 The Authors

Стратегии лекарственного обеспечения пациентов с хроническим вирусным гепатитом С

The report reviews the options of drug supply for patients with chronic hepatitis C in the Russian Federation and elsewhere. The results of the Moscow regional program aimed at improving the quality of medical care in such patients are discussed. The proposed measures contribute to the reduced mortality rate in patients suffering from infections. The prospects of further improvements in the availability of antiviral medications for patients with chronic viral hepatitis C are outlined. В статье рассмотрены варианты лекарственного обеспечения пациентов с хроническим вирусным гепатитом С за рубежом и в Российской Федерации. Продемонстрирована эффективность работы целевой региональной программы, направленной на повышение качества оказания медицинской помощи жителям города Москвы, страдающим хроническим вирусным гепатитом С, снижение смертности от инфекционных заболеваний. Определен вектор дальнейшего перспективного развития для повышения доступности лекарственного обеспечения противовирусной терапии (ПВТ) для пациентов с хроническим вирусным гепатитом С.

The astrometric Gaia-FUN-SSO observation campaign of 99942 Apophis

© 2015 ESO. Aims. Astrometric observations performed by the Gaia Follow-Up Network for Solar System Objects (Gaia-FUN-SSO) play a key role in ensuring that moving objects first detected by ESA's Gaia mission remain recoverable after their discovery. An observation campaign on the potentially hazardous asteroid (99 942) Apophis was conducted during the asteroid's latest period of visibility, from 12/21/2012 to 5/2/2013, to test the coordination and evaluate the overall performance of the Gaia-FUN-SSO. Methods. The 2732 high quality astrometric observations acquired during the Gaia-FUN-SSO campaign were reduced with the Platform for Reduction of Astronomical Images Automatically (PRAIA), using the USNO CCD Astrograph Catalogue 4 (UCAC4) as a reference. The astrometric reduction process and the precision of the newly obtained measurements are discussed. We compare the residuals of astrometric observations that we obtained using this reduction process to data sets that were individually reduced by observers and accepted by the Minor Planet Center. Results. We obtained 2103 previously unpublished astrometric positions and provide these to the scientific community. Using these data we show that our reduction of this astrometric campaign with a reliable stellar catalog substantially improves the quality of the astrometric results. We present evidence that the new data will help to reduce the orbit uncertainty of Apophis during its close approach in 2029. We show that uncertainties due to geolocations of observing stations, as well as rounding of astrometric data can introduce an unnecessary degradation in the quality of the resulting astrometric positions. Finally, we discuss the impact of our campaign reduction on the recovery process of newly discovered asteroids